Improvement in wringing-machines



dan@ ne fatina (time.

ALBERT SPENCER, 0F PROVIDENCE, `RHODE ISLAND.

Letters PatentNo. 111,484, dated January 31, 187,1.-

IMPROVEMENT IN WRlNGlNG-MA-CHlNES..

The Schedule referred to in these Letters Patent and making part of the same.

To all 'who-m it may concern v Be it known that I, ALBERT H. SPENCER, of Providence, in the county ot' Providence and State of Rhode Island, have invented certain Improvement-S j in IVringing-Machines, of which the following is a specification.

Nature mul Objects of the Invent-ion.

pressure-rollers instead of at one-end ofthe chain of gearing.

General Description.

Figure l is a perspective view of my machine.

Figure 2 is( an end View of the machine.

Figure-3 is a rear view of the same.

Figure 4 is a view of the spring-clamp and screw.v

In the drawing-' AB are standards of the machine, unitedand supported by the cross-bars C D, which also form pivots for the levers E F and axes for the gear-Wheels G H.

These gears mesh wit-lr each other, and with the gears I J on the shafts of the pressure-rollers K L, which have `their bearings near one end of' the levers E F, and are compressed by the spring M, placed'betweentheir opposite ends.

A projecting flange or pin serves to retain the spring in its proper position, and a washer may be interposed to 4support it or to increase its tension. A

The uprights'A B (being pierced by the shafts O D, which form the fulcrums of. the levers E F) serve to fix the centers of said levers at an unvarying distance from each other,`so thatY separation of the rollers can only accompanya compression of Vthe spring M. Such separation does not, however, affect the gearing. The gear-I will continue in mesh with G, and the gear J with H, since the levers are pivoted on the axles of G and H.

APower may be applied to either of the pressurerollers or to the gears G or H. I prefer, however, to apply it to the shaft C, if made to rotate, or to the gear G, which may revolve on it.

By thus inter-posing the power between the driven rollers I avoid the back-lash incident toA a chain of gearing actuated, from one end; and by permitting the bearings'of both the upper and lower roller to yield in arcsof circles described from the centers of C Aand. D, Iobviate the objections heretofore raised vainst a chainof gears where the separation ofthe rollers was due alone to the rising of the upper one, the lower receiving the crank and rotating at 'a fixed point.

By making the gears I J two-thirds the diameter of G H, I increase the speed ofthe pressure-rollers onchall', which will greatly expedite the work of the machine. rIhe rate of speed may thus be readily increased to any desired extent by varying the sizes of vthe gears-another advantage of the application ot' power to the intermediate gears.

The nprights A B are furnished at their lowerends with jaws and clamp-screws for attaching the wringer to a tub or box.

rlhe points ofthe screwsN are clothed with clamps O, com posed .ot'a strip of sheet metal bent into snitable form and sprung over the point of the screw after Aits insertion through the standard--a much simpler process than riveting on' a plain head. The curved form of the face of this clamp gives it a spring action, enabling it to clasp tightly when moved by the screw without illefacing the tub or box.

Aft-er the clothes have passed between the rubber rollers K L, they are received upon the slide P, fig. 1, which delivers them from the machine.

A ring around thel shaft D' secures this slide in its place, and enables it to adjust itself to the varying position ofthe rollers, its lower corners resting on the level' F.

I claim as my invention- 1. rlhe independent axes C I), serving as fnlcrnms for the levers E F and as braces for the whole ma'- chine..

2. The pressure-levers E F, hinged on the axes of the intermediate gears, and forming yielding bearings for the rollers K L.

3. A pair of wringing-rollers, provided with end gears and mounted in yielding bearings, in combination with and operated by a driving and an intermediate gear, respectively mounted upon fixed bearings, the several gears being so arranged that their relative -Working position-s will remain the same' whether the rolls be in close contact or widely separated, substantially as described.

4. 'I be clamp O, formed of a piece of elastic sheet metal bent. curved and attached to the screw N, as described.

5. The uprights A B, pivots C D, and levers E F,

in combination with the gear-wheels G H I J, pressure-rollers K L, and spring M.

ALBERT H. SPENCER.

Witnesses:

WM. H. GREENE, DANIEL HUNT. 

